Supported Platforms
Related Documentation
- ACX, M, MX, PTX, T Series
- no-neighbor-down-notification
- M, MX, PTX, QFX, T Series
- Disabling Adjacency Down and Neighbor Down Notification in IS-IS and OSPF
no-adjacency-down-notification (Protocols IS-IS)
Syntax
Hierarchy Level
Release Information
Statement introduced in Junos OS Release 8.0.
Description
Disable adjacency down notification for IS-IS to allow for migration from IS-IS to OSPF without disruption of the RSVP neighbors and associated RSVP-signaled LSPs.
Whenever IS-IS is deactivated, the IS-IS adjacencies are brought down. IS-IS signals to RSVP to bring down any RSVP neighbors associated with the IS-IS adjacencies, and this further causes the associated LSPs signaled by RSVP to go down as well.
A similar process occurs whenever OSPF is deactivated. The OSPF neighbors are brought down. OSPF signals to RSVP to bring down any of the RSVP neighbors associated with the OSPF neighbors, and this further causes the associated LSPs signaled by RSVP to go down as well.
If you need to migrate from IS-IS to OSPF or from OSPF to IS-IS, the IGP notification to RSVP for an adjacency or neighbor down event needs to be ignored. Using the no-adjacency-down-notification or no-neighbor-down-notification statements, you can disable IS-IS adjacency down notification or OSPF neighbor down notification, respectively, until the migration is complete. The network administrator is responsible for configuring the statements before the migration, and then removing them from the configuration afterward, so that IGP notification can function normally.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Related Documentation
- ACX, M, MX, PTX, T Series
- no-neighbor-down-notification
- M, MX, PTX, QFX, T Series
- Disabling Adjacency Down and Neighbor Down Notification in IS-IS and OSPF
Published: 2012-07-02
Supported Platforms
Related Documentation
- ACX, M, MX, PTX, T Series
- no-neighbor-down-notification
- M, MX, PTX, QFX, T Series
- Disabling Adjacency Down and Neighbor Down Notification in IS-IS and OSPF
